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Types of Gold Used to Make Jewelry

Did you know that there is more than one type of gold that your jewelry can be made of? Some of these varieties don’t look at all like the yellow metal people usually associate with the word “gold.” Those different kinds of gold are simply alloys made by mixing gold with different metals.

Let’s see what types of gold exist and how they are created.

Gold ring with diamonds

Yellow gold is the most common type of gold used in jewelry.

Yellow Gold

Yellow gold is the most common type of gold used in jewelry.

It should be noted, however, that although yellow is the natural color of gold, yellow gold is not the same as pure gold.

Since this metal is very soft, it is not suitable for jewelry making unless it is mixed with other metals to make it harder.

The yellow gold jewelry you see in stores has varying degrees of purity depending on how much actual gold it contains as measured by its karat.

The lower the percentage of gold content in a piece, the lower its karat number is.

In general, lower-karat gold jewelry has a yellow color that is less intense than that of higher-karat pieces. Low-karat items are also harder and more durable than gold jewelry that is purer.

Colored Gold

Since yellow is gold’s original color, any alloy of this metal that has a different hue is considered colored gold.

The color of a gold alloy depends on what other metals are included in the mix. Here are the most common varieties of colored gold:

White Gold: This is the most popular gold alloy used in jewelry. To achieve a white color, gold is mixed with metals such as palladium or nickel.

Adding white metals is not enough to get a perfect white color, though, and a white gold alloy still looks a bit yellowish. This is why it is plated with rhodium, which actually gives white gold jewelry its color and luster.

Rose Gold: Rose gold owes its color to the copper that is mixed in the alloy. The more copper there is, the more pronounced the rose color becomes.

High-copper rose gold alloys have an intense reddish hue and are therefore also known as “red gold.” Rose gold varieties that contain less copper have a faint color; for that reason, those alloys are also called “pink gold.”

Black Gold: A gold alloy can be turned black by using several methods. One way is to simply cover the surface of the piece with a black compound (such as black rhodium).

Another option is to treat the surface of the item with certain chemicals so that it changes color. It is also possible to change the color of a gold alloy containing cobalt, copper, titanium, or iron by causing its surface to oxidize through the use of heat.

Green Gold: This type of alloy is made by mixing gold with silver (and more rarely, cadmium). The green color is usually not very intense, and most green gold looks more like yellow gold with a greenish hue.

Grey Gold: The grey color of this alloy is achieved by mixing gold with copper, silver, and manganese.

Purple Gold: The purple color of this alloy is achieved by adding aluminum and pure gold together. Purple gold is, however, not very durable and can break easily because the compound is relatively brittle.

Blue Gold: One way to produce blue gold is to mix indium with pure gold. Like purple gold, the resulting blue gold compound tends to be brittle.

An alternative way to make blue gold is to mix gold with iron or rhodium and treat the resulting alloy with heat so that the mixture oxidizes and forms a blue layer.

Where to Buy Gold Jewelry?

Take a look at the great selection of gold at Amazon.

For jewelry with diamonds, emeralds, rubies, or sapphires, we recommend James Allen (read review) because it allows you to take a 360-degree look at any stone before having it set in gold.

Blue Nile is another reputable diamond retailer we recommend.

Disclosure: Some of the links on our site may help us earn affiliate commissions from advertisers. As an Amazon Associate, we may earn from qualifying purchases. Learn more

Read Next

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Additional Resources
  • Types of Gold
  • Colored gold
  • About rose gold, white gold, and green gold
  • Colored Gold Alloys

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